Chapter 2, Problem 2.7P

Twenty-five residents of a community for senior citizens were asked to keep track of the number of hours they watched TV during the past week.

20	2	12	7	32
7	10	7	13	17
14	15	15	9	27
5	21	4	7	6
2	18	10	5	11

a. Construct a frequency distribution to display these data.

b. What are the midpoints of the class intervals?

c. Add columns to the table to display the percentage distribution, cumulative frequencies, and cumulative percentages.

d. Write a paragraph summarizing this distribution of scores.